Azure cost report tool ☐ Set up Python project structure and dependencies ☐ Research Azure Cost Management API endpoints and authentication ☐ Implement Azure OpenAI cost data retrieval by resource ☐ Create monthly total cost report (table format) ☐ Create daily cost trend analysis with prediction ☐ Implement Excel export functionality ☐ Create command line interface for month specification ・・・ Wrote 9 lines to requirements.txt ・・・ Wrote 241 lines to azure_cost_reporter.py ・・・